Guest Stars Pete MacHale as Leon Toheeb Jimoh as Marcus Ursula Holliday as Cass Stewart Anneika Rose as Natalie Sheila Atim as Amanda Javad Olivia Morgan as Tia Bhavik C. Pankhania as ICSA Officer Aoife Hinds as Lyla Michael Wildman as ICSA Agent Ryan Anna Koval as Gwen Ashe Wasim Zakir as Naz Heather Bleasdale as Nurse Mary Alexander Hanson as James Parslow Jodie Tyack as Laura Nancy as Scarlett Brookes Mark Burgess as Mr Barker Luke Hornsby as Derrick (Resister 1) Brooke Haynes as Little Girl Michael Golab as ICSA Guard Carl Prekopp as Inmate Rayna Campbell as ICSA Agent 2 / Female Guard
